+ rename: fix Solaris 9 bug
+ * lib/rename.c (rpl_rename): Rewrite to recognize trailing slash
+ on non-directory. Avoid calling exit.
+ * modules/rename (Depends-on): Drop xalloc; add lstat, stdbool,
+ strdup.
+ * modules/rename-tests (Depends-on): Drop lstat.
+ * m4/rename.m4 (gl_FUNC_RENAME): Detect Solaris bug.
+ (gl_PREREQ_RENAME): Delete unused macro.
+